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| Q. |
Corrosion resistance of steels is increased by the addition of alloying elements like |
| A. | Tungsten |
| B. | Chromium and nickel |
| C. | Cobalt and vanadium |
| D. | Silicon and sulphur |
| E. | Sulphur |
| Answer» C. Cobalt and vanadium | |
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Uttam Singh
1 year ago
Option B correct
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